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AVprozaik [17]
3 years ago
15

Answer this question im giving out brainliest

Mathematics
2 answers:
AleksAgata [21]3 years ago
7 0
73.5 yard square I think I’m right
Andrews [41]3 years ago
3 0

Answer:

73.5 yd squared

Step-by-step explanation:

The formula for finding an area of a triangle is Base x Height divided by 2, so 21 x 7 = 147 and dividing that by 2 gets you 73.5.

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In a 45-45-90 right triangle, what is the ratio of the length of one leg to the
8_murik_8 [283]
In a 45-45-90 triangle, both of the legs have the same length and the ratio of one leg to the hypotenuse is 1:sqrt(2).
7 0
3 years ago
In a​ survey, 400 people were asked to choose one card out of five cards labeled 1 to 5. The results are shown in the table. Com
-BARSIC- [3]

Answer:

The value of the experimental probability is greater

Step-by-step explanation:

For the theoretical probability;

the probability that a card with the number 3 is selected is 1/5

We consider that the probabilities of each selection are equal, for the theoretical probability

For the experimental, we simply place the frequency of the selection 3 over the total

that will be 128/400 = 8/25

As we know that 8/25 is greater than 1/5

We can conclude that the value of the experimental probability is greater than that of the theoretical

6 0
3 years ago
Read 2 more answers
Question 33 with explanation please! 15 points
Dominik [7]
1. do you realize you have Paul at the bottom of the paper, 2. Well, Its Paul, because it says “all the girls only have 1 pet and 1 brother or sibling,”
7 0
3 years ago
Read 2 more answers
Your boss tells you that she knows the length of the widgets your company makes is normally distributed with a mean of 25 inches
sp2606 [1]

Answer:

Mean of sampling distribution = 25 inches

Standard deviation of sampling distribution = 4 inches

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 25 inches

Standard Deviation, σ = 12 inches

Sample size, n = 9

We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.

a) Mean of the sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

\bar{x} = \mu = 25\text{ inches}

b) Standard deviation of the sampling distribution

s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{12}{\sqrt{9}} = 4\text{ inches}

8 0
3 years ago
Plz help<br> and no guessing
Pani-rosa [81]
Multiply 1st equation by 5
-5x + 10y = -20

now you have
-5x + 10y = -20
 5x - 10y = 20
---------------------add
 0 + 0 = 0
0 = 0

answer
C. the system has infinitely many solutions
6 0
3 years ago
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